Home / 640,068.19-883,320.93-368,136.16

Finding the Fourth Proportional to 640,068.19, 883,320.93 and 368,136.16

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Solution

The fourth proportional to 640,068.19, 883,320.93 and 368,136.16 is: 508,043.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,068.19 : 883,320.93 = 368,136.16 : x
  2. Step 2: Convert to fraction form
    640,068.19/883,320.93 = 368,136.16/x
  3. Step 3: Cross multiply
    640,068.19x = 883,320.93 × 368,136.16
  4. Step 4: Simplify right side
    640,068.19x = 325,182,370,801.22
  5. Step 5: Solve for x
    x = 325,182,370,801.22/640,068.19
  6. Step 6: Final answer
    x = 508,043.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.